Asp.Mvc 2.0用户登录实例讲解---(4)服务器端验证(18)

    { 
        if (ModelState.IsValid) 
        { 
            //验证通过  
            bool result = false; 
            if (!new Models.SqlHelper().ExistUser(model)) 
            { 
                result = new Models.SqlHelper().AddUser(model); 
            } 
 
            if (result) 
            { 
                //添加成功转向主页  
                FormsService.SignIn(model.UserName, false); 
                return RedirectToAction("index"); 
            } 
            else 
            { 
                //返回注册页面  
                ViewData["msg"] = "添加用户失败"; 
                return View(model); 
            } 
 
        } 
        else 
        { 
            //验证不通过  
            //返回注册页面  
            ViewData["msg"] = "添加用户失败"; 
            return View(model); 
        } 
    } 
    /// <summary>
        /// 注册提交
        /// </summary>
        /// <param name="model"></param>